NAICS 333131: This U.S. industry comprises establishments primarily engaged in (1) manufacturing underground mining machinery and equipment, such as coal breakers, mining cars, core drills, coal cutters, rock drills and (2) manufacturing mineral beneficiating machinery and equipment used in surface or underground mines.


  • Amalgamators (i.e., Metallurgical And Mining Machinery) Manufacturing
  • Augers, Mining-type, Manufacturing
  • Bits, Rock Drill, Underground Mining-type, Manufacturing
  • Breakers, Coal, Manufacturing
  • Cars, Mining, Manufacturing
  • Cleaning Machinery, Mining-type, Manufacturing

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John Day Dam STS Roller Chains Last updated 4 days ago / Department of the Army
Due 9/25/17

This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Subpart 12.6, as supplemented with additional information included in this notice. This announcement contains the only solicitation. The US Army Corp of Engineers, Portland District, CENWP-CT-S,... read more